399291240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{195731}}^1$

素因数の和:195762

約数の個数: 64

約数和(自身を含む): 1268343360

約数和(自身を除く): 869052120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 195731, 391462, 587193, 782924, 978655, 1174386, 1565848, 1957310, 2348772, 2935965, 3327427, 3914620, 4697544, 5871930, 6654854, 7829240, 9982281, 11743860, 13309708, 16637135, 19964562, 23487720, 26619416, 33274270, 39929124, 49911405, 66548540, 79858248, 99822810, 133097080, 199645620, 399291240]

約数ペア:

[(1, 399291240), (2, 199645620), (3, 133097080), (4, 99822810), (5, 79858248), (6, 66548540), (8, 49911405), (10, 39929124), (12, 33274270), (15, 26619416), (17, 23487720), (20, 19964562), (24, 16637135), (30, 13309708), (34, 11743860), (40, 9982281), (51, 7829240), (60, 6654854), (68, 5871930), (85, 4697544), (102, 3914620), (120, 3327427), (136, 2935965), (170, 2348772), (204, 1957310), (255, 1565848), (340, 1174386), (408, 978655), (510, 782924), (680, 587193), (1020, 391462), (2040, 195731)]